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https://issues.apache.org/jira/browse/NIFI-10073?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mark Payne reassigned NIFI-10073:
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Assignee: Simon Bence (was: Mark Payne)
> Adding new load balancing strategy for better utilisation and to avoid
> backpressure if possible
> -----------------------------------------------------------------------------------------------
>
> Key: NIFI-10073
> URL: https://issues.apache.org/jira/browse/NIFI-10073
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core Framework
> Reporter: Simon Bence
> Assignee: Simon Bence
> Priority: Major
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> With the current load balancing for connections, NiFi might end up in a
> situation where the utilisation of the nodes differ highly. In extreme cases
> backpressure might be applied even if there are nodes might accept data.
> In order to resolve this, a new load balancing strategy needs to be
> introduced with the following characteristics:
> - Work stealing should be possible, thus the strategy should try to keep all
> nodes busy.
> - If any node can accept data we should not apply backpressure
> To reach this, when the newly introduced strategi is being applied, a shared
> partition will be used by the remote partitons. When the flow files are sent
> to a remote node, the decision must be made, how many of them should be sent.
> Helping this decision the load balancing protocol needs to be modified in the
> way, instead of sending back SPACE_AVAILABLE and QUEUE_FULL, the nodes should
> provide a more detailed information.
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